Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
To provide a liquefaction countermeasure structure with good practicability where drains are arranged in a condition in accordance with a configuration of the foundation.SOLUTION: A liquefaction countermeasure structure according to the present invention comprises a plurality of drains reaching an upper end area of a liquefaction layer from the ground in the foundation where a liquefaction layer is placed just under a non-liquefaction layer nearest to the ground surface. The liquefaction countermeasure structure according to the present invention is capable of suppressing water pressure acting on a lower end of the non-liquefaction layer through a drainage effect from the drains equal to or lower than a predetermined value of the whole loaded pressure of the depth after an earthquake by appropriately setting diameter, permeability, and depth of the plurality of drains and interval between the drains.SELECTED DRAWING: Figure 1
【課題】実用性が高く、地盤の構成に応じた条件でドレーンが配置されている液状化対策構造を提供する。【解決手段】本発明に係る液状化対策構造では、地表面に最も近い非液状化層の直下に液状化層が存在する地盤に地上から液状化層の上端領域に達する複数のドレーンが配置されている。本発明に係る液状化対策構造では、前記複数のドレーンの径、透水性、深度、前記ドレーンの間隔を適切に設定することによって地震発生後に、前記ドレーンからの排水効果によって前記非液状化層の下端に作用する水圧が当該深度の全上載圧の所定値以下に抑えられるようになっている。【選択図】図１
To provide a liquefaction countermeasure structure with good practicability where drains are arranged in a condition in accordance with a configuration of the foundation.SOLUTION: A liquefaction countermeasure structure according to the present invention comprises a plurality of drains reaching an upper end area of a liquefaction layer from the ground in the foundation where a liquefaction layer is placed just under a non-liquefaction layer nearest to the ground surface. The liquefaction countermeasure structure according to the present invention is capable of suppressing water pressure acting on a lower end of the non-liquefaction layer through a drainage effect from the drains equal to or lower than a predetermined value of the whole loaded pressure of the depth after an earthquake by appropriately setting diameter, permeability, and depth of the plurality of drains and interval between the drains.SELECTED DRAWING: Figure 1
【課題】実用性が高く、地盤の構成に応じた条件でドレーンが配置されている液状化対策構造を提供する。【解決手段】本発明に係る液状化対策構造では、地表面に最も近い非液状化層の直下に液状化層が存在する地盤に地上から液状化層の上端領域に達する複数のドレーンが配置されている。本発明に係る液状化対策構造では、前記複数のドレーンの径、透水性、深度、前記ドレーンの間隔を適切に設定することによって地震発生後に、前記ドレーンからの排水効果によって前記非液状化層の下端に作用する水圧が当該深度の全上載圧の所定値以下に抑えられるようになっている。【選択図】図１
LIQUEFACTION COUNTERMEASURE STRUCTURE
液状化対策構造
MANO HIDEYUKI (Autor:in)
05.01.2024
Patent
Elektronische Ressource
Japanisch
IPC:
E02D
FOUNDATIONS
,
Gründungen
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